Malicious PDF — malware analysis report

Static analysis result for SHA-256 49cf8343ce1aa0b6…

MALICIOUS

PDF

13.6 KB Created: 2019-05-02 01:07:00 +01:00 Authoring application: mPDF 5.7
MD5: 7ed483a237b10e3c114e830ec9d78e4f SHA-1: 6b49aef69e3a74690fef87424165ac41b58075d4 SHA-256: 49cf8343ce1aa0b6ae07425911e0e4cbbb786ff71ebefdf2c8fd423a99f3d0a5
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs, identified as a link farm. While the ML classifier flagged this as malicious, the specific URLs themselves are currently classified as benign. The primary attack pattern appears to be directing users to a multitude of external sites, likely for SEO poisoning or to host further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9102

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://muicuiu.dumb1.com/2a09a04a03a07a06/Outcast-Living-Out-Loud-1-by-Denise-Jaden.pdf
    • http://muicuiu.dumb1.com/2a04a06a01a06a03/Foreign-Exchange-by-Denise-Jaden.pdf
    • http://muicuiu.dumb1.com/2a07a05a03a02a00/Fast-Fiction-A-Guide-to-Outlining-and-Writing-a-First-Draft-Novel-in-Thirty-Days-by-Denise-Jaden.pdf
    • http://muicuiu.dumb1.com/1a09a09a03a06a05/Living-Out-Loud-Free-Fall-4-by-Christina-Lee.pdf
    • http://muicuiu.dumb1.com/1a00a02a08a02a03a02/Sex-mit-Unbekannten-by-Jaden-Elliots.pdf
    • http://muicuiu.dumb1.com/4a05a08a05a00a07/Life-An-Autopsy-by-Jaden-Wilkes.pdf
    • http://muicuiu.dumb1.com/2a04a04a00a02a00/A-Cup-Full-of-Midnight-by-Jaden-Terrell.pdf
    • http://muicuiu.dumb1.com/1a00a02a02a05a05a05/Ramses-Rule-by-Jaden-Sinclair.pdf
    • http://muicuiu.dumb1.com/8a08a04a01a02/Jaden-Baker-by-Courtney-Kirchoff.pdf
    • http://muicuiu.dumb1.com/1a01a08a06a02a06/Reverse-Cowgirl-by-Jaden-Wilkes.pdf
    • http://muicuiu.dumb1.com/2a09a01a09a05a05/Perfectly-Normal-The-Beast-2-by-Jaden-Wilkes.pdf
    • http://muicuiu.dumb1.com/6a04a08a03a03a05/Anima-Rotta-Bloodmate-2-by-Jaden-Sinclair.pdf
    • http://muicuiu.dumb1.com/2a08a07a03a05a07/Outcast-by-Alex-Douglas.pdf
    • http://muicuiu.dumb1.com/1a03a08a05a06a05/Outcast-by-Rosemary-Sutcliff.pdf
    • http://muicuiu.dumb1.com/5a04a07a04a09a08/The-Ladek-Invasion-Jaden-Toussaint-the-Greatest-2-by-Marti-Dumas.pdf
    • http://muicuiu.dumb1.com/3a07a08a01a01a09/The-Alpha-and-the-Outcast-by-Cheryl-Dragon.pdf
    • http://muicuiu.dumb1.com/2a09a05a02a04a04/Dragon-Outcast-Age-of-Fire-3-by-E-E-Knight.pdf
    • http://muicuiu.dumb1.com/4a06a05a03a07a04/An-Outcast-State-by-Scott-D-Smith.pdf
    • http://muicuiu.dumb1.com/1a01a02a00a02a03/The-Un-Magician-OutCast-1-by-Christopher-Golden.pdf
    • http://muicuiu.dumb1.com/1a00a07a09a06a02/Outcast-Apocalyptia-1-by-Aileen-Fish.pdf
    • http://muicuiu.dumb1.com/2a09a01a09a05a05/Perfectly-Normal-The-Beast-2-by-Jaden-Wilkes

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